Although I do watch my carbs and limit the amount I have (I only worry about the carbs in bread, pasta, rice, pastry, cake, crisps, biscuits etc and ignore the carbs in fruit and veg) I struggle to believe it is a major factor in the rise in type 2 diabetes.
My parents and grandparents diets were VERY high in carbs as was mine when I was growing up - cereal and lots of toast for breakfast, at least 2 sandwiches at lunch time (4 slices of bread) and of course lots of potatoes at the main meal. Pudding every day, usually a fruit pie or sponge pudding or similar and often a carb heavy snack for supper. Suet dumplings in the stew.
Another piece of bread and jam if peckish between meals. That was typical diet when I was at school. I forgot about the crisps and biscuits. I don't know if I was a very greedy child but I'd often share a bag of chips with friends on the way home from swimming or scouts as well.
My brother developed Type I diabetes in his mid 20s (nothing to do with his diet) and I am the only one in my family with Type II.
Why have carbs suddenly become the enemy? Is it because we don't get nearly as much exercise as we used to? A more sedentary lifestyle for adults and children?